The Distance to the Galaxy Coma P.

If the extremely low surface brightness galaxy ComaP lies at $5.5\pm0.3$ Mpc as recently proposed then it would have an extraordinarily deviant peculiar velocityof $\sim900$ km $\mathrm{s^{-1}}$ at a location where differential velocities between galaxies are low. We have accessed the images from the HST archives used to derive the literature distance from the magnitude of the tip of the red giant branch. Our analysis gives the distance to be $10.9\pm1.0$ Mpc. At this location the galaxy lies within the infallregion of the Virgo Cluster, such that its still considerable peculiar velocityof $\sim500$ km $\mathrm{s^{-1}}$ is consistent with an established model. ComaP has an unusually pronounced asymptotic giant branchrelative to its red giant branch. The dominant stellar populationis just a few Gyr old.